H - Electricity – 01 – F
Patent
H - Electricity
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H01F 1/44 (2006.01) B01F 17/44 (2006.01) B01F 17/52 (2006.01) C09C 1/24 (2006.01) C09C 3/08 (2006.01) C09C 3/10 (2006.01) G02B 1/10 (2006.01) G02B 5/08 (2006.01) H01F 1/42 (2006.01)
Patent
CA 2684964
There is provided a process for the preparation of a suspension of magnetic particles in a polar carrier liquid. The process includes the step of: coating the surface of the magnetic particles with an organic ligand having a hydrophilic chain prior to the suspension. For preparing a magnetically deformable mirror, the suspension of magnetic particles in a polar carrier liquid is coated with a reflective surface layer. A ferrofluid includes a suspension of magnetic particles coated with an organic ligand having a hydrophilic chain in a polar carrier liquid.
L'invention concerne un procédé pour la préparation d'une suspension de particules magnétiques dans un liquide porteur polaire. Le procédé comprend les étapes consistant à : revêtir la surface des particules magnétiques d'un ligand organique ayant une chaîne hydrophile avant la suspension. Pour préparer un miroir magnétiquement déformable, la suspension de particules magnétiques dans un liquide porteur polaire est revêtue d'une couche de surface réfléchissante. Un ferrofluide comprend une suspension de particules magnétiques revêtues d'un ligand organique ayant une chaîne hydrophile dans un liquide porteur polaire.
Borra Ermanno
Dery Jean-Philippe
Ritcey Anna
Senkow Stephanie
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Universite Laval
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